Human Hair Structure (the cuticle)
Hair is made of different layers. The outer layer, called the "cuticle", is made up of overlapping layers of long cells. They lie on the surface aligned in the same direction like the tiles on a roof with their free edges directed towards the tip. The cuticle locks in essential moisture and protects the hair against outside elements. A healthy cuticle is much more than just a protective layer. Much of the shine is due to the cuticle, light reflects from their glossy surfaces. This, together with the pigment within the cortex, gives hair its characteristic appearance. Hair without cuticle would appear dull and lifeless, it would dry out and become brittle.

Human hair extensions
The human hair used in the hair extension industry comes in different qualities. In general we can say that we get what we pay for, the lower the price of your hair extension the less hair quality we can expect. The highest quality hair will still have all it's cuticle perfectly aligned in the same direction. If the cuticle scales are not facing the same direction, hair will interlock like Velcro, this will lead to matted and tangled hair.Cheaper hair is very often placed in an acid bath which completely destroys the cuticle. To restore the shine this hair is covered with a silicon layer. It looks beautiful but after a few washes the silicon is removed and the hair matts, tangles, and becomes dry.
European human hair does not necessarily come from Europe. It is a group name for different hair with an almost similar structure. Indian hair, Latin American hair, European hair, the only exemptions are Asian hair and African hair (their structure is very different).
Typical European human hair is relatively thin and has an oval cross-section.
This is a popular hair type for a human hair extension.

To prepare this hair for use in hair extensions it is usually made thinner (acid bath) and lighter. This hair is less expensive.



The majority of hair sold today is non-cuticle hair, which is less expensive. So if you want to spend less money on your hair extension this could be fine for you as long as you realize that this hair will probably start matting, tangling and become dry a lot sooner than a higher quality hair.

Chemical treatments like color and perm can be harmful as well. Go to your stylist for advise, they should know what is best for your hair. Brush your hair gentle to prevent damage. This is not just better for your hair extensions but it will also keep your own hair healthier.
European and Indian Remi hair is the most popular for a human hair extension but also the most expensive.
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